Cleaning Requirements - Huawei eSpace 6850 User Manual

Huawei IP Phone eSpace 6850
User Manual
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Cleaning Requirements

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Issue 01 (2012-06-20)
Use the accessories provided or authorized by the manufacturer only.
The power supply of the device shall meet the requirements of the input voltage of the
device. Use the provided surge protection power socket only.
Before plugging or unplugging any cable, shut down the device and disconnect it from
the power supply.
While plugging or unplugging any cable, make sure that your hands are completely dry.
Do not tread on, pull, or over-bend any cable. Otherwise, the cable may be damaged,
leading to malfunction of the device.
Do not use an old or a damaged power cable.
During lightning weather, stop using the device and disconnect it from the power supply.
Unplug the power plug and the ADSL(Asymmetric Digital Subscriber Line) twisted pair
(the radio frequency cable) to avoid lightning strike.
If the device is not used for a long time, disconnect it from the power supply and unplug
the power plug.
Do not look directly into the optical interface and the laser-transmitting interface on the
device, or the infrared transmitting interface on the remote control with your eyes.
Otherwise, your eyes may be injured.
In any of the following cases, stop using the device, disconnect it from the power supply,
and unplug the power plug immediately: there is smoke emitted from the device, or there
is some abnormal noise or smell. Contact the specified maintenance center for repair.
Avoid any object (such as metal shavings) from entering the device from the heat
dissipation intakes.
Before connecting any other cable, connect the ground cable of the device first. Do not
disconnect the ground cable until you disconnect all other cables.
Make sure that the three-phase power socket is grounded reliably. The neutral line and
the live line shall not be connected inversely.
Do not scratch or abrade the shell of the device. This may lead to malfunctions of the
device. The shed painting material may also lead to skin allergy.
Before cleaning the device, stop using it and disconnect it from the power supply.
Use a piece of soft dry cloth to clean the device.
Keep the power plug clean and dry. Using a dirty or wet power plug may lead to electric
shock or other perils.
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1 Safety Precautions
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